The Astounding Physics of N95 Masks

N95 masks are designed to filter airborne particles using a combination of mechanical and electrostatic methods. Unlike strainers, they capture particles smaller than the gaps between fibers by using multiple layers and an electric field. The masks are effective against both large and small particles, but medium-sized particles are harder to filter. Proper fit is crucial for effectiveness, and certain decontamination methods can damage the mask's properties. N95 masks are essential for healthcare workers, especially during shortages, and require careful handling to maintain their filtering capabilities.

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